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Definition
2024
◊
◊
◊
U+25CA
,
&
#9674;
LOZENGE
←
◉
[U+25C9]
Geometric Shapes
○
→
[U+25CB]
See also:
⋄
[U+22C4 DIAMOND OPERATOR]
,
◇
[U+25C7 WHITE DIAMOND]
,
and
♢
[U+2662 WHITE DIAMOND SUIT]
Translingual
Symbol
◊
(
logic
)
possibility
,
possible
,
possibly
(
set theory
)
the diamond principle
Synonyms
(
modal operator denoting
possibility
)
:
M
See also
□
Etymology
The use of this notation in
modal logic
was developed by
C.I. Lewis
.
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